C# find exact-match in string

Question

How can I search for an exact match in a string? For example, If I had a string with this text:

label
label:
labels

And I search for label, I only want

Answer 1

It seems you've got a delimiter (crlf) between the words so you could include the delimiter as part of the search string.

If not then I'd go with Liviu's suggestion.